OF LOWER GREESSA^D PLANTS. 179 



V. 8266, V. 8267, V. 8268 (S. 2933, 34, 35). Two radial and 

 a tangential longitudinal section, the corresponding 

 transverse sections being unknown. They are poorly 

 preserved, but characteristic of the species so far as 

 observable. Lower Greensand, Shanklin ; I. of Wight. 

 Transferred from Botanical Dept. 



V. 8280 (S. 2947). Isolated radial longitudinal section. The 

 resin-cells and the pits on the radial walls of the 

 medullary ray-cells show fairly well. Lower Green- 

 sand ; Shanklin, Isle of Wight. 

 From Prof. Sedgwick (?), transferred from Botanical Dept. 



V. 8281, V. 8282, V. 8283 (S. 2948, 49, 50). These three 

 sections are presumably cut from the same specimen. 

 V. 8283 is a transverse section of a branch about 

 3 era. in diameter, with a central pith and primary 

 xylems surrounded by rings of secondary wood. In 

 each of these rings the amount of autumn wood is 

 small; some of the rings are composite. In this 

 section the primary wood can be very well seen, and 

 is grouped in primary bundles round the pith, the 

 cells of which are also preserved. V. 8281 is a poorly- 

 preserved radial longitudinal section. V. 8282 is a 

 tangential longitudiual section, which shows one or 

 two dwarf-shoot traces. As it is uncertain that this 

 section belongs to the transverse section, and conse- 

 quently it is uncertain whether it does actually belong 

 to this species, deductions must not be drawn from it. 

 Lower Crioceras bed ; Sandown, Isle of Wight. 

 From Dr. Bowerlank(t), transferred from Botanical Dept. 



V. 11518, V. 11518 a-c. A small specimen of secondary wood 

 enclosed in granular matrix, and three sections 

 cut from it. The wood-elements are rather larger 

 than in the type of C. vectense, but the specimen 

 shows no other feature to distinguish it from this 

 species. In transverse section the characteristic 

 " composite " rings of autumn wood are well seen. 

 The longitudinal sections are poorly preserved, and 

 show no feature of interest. Lower Greensand ; 

 Luccomb Chine, Isle of Wight. 



Transferred from Botanical Dept. 



